基于改进Tennant法的湟水流域河道内生态环境需水量分析  

Eco-environmental water requirement analysis in Huangshui River based on improved Tennant method

作　　者：郑小康[1] 侯红雨[1] 付永锋[1] 

机构地区：[1]黄河勘测规划设计有限公司,郑州450003

出　　处：《南水北调与水利科技》2015年第4期681-685,690,共6页South-to-North Water Transfers and Water Science & Technology

摘　　要：对传统的Tennant法进行改进,从原方法中确定多年平均年流量系列中找一典型年,要求典型年的年流量最接近多年平均流量,典型年来自河流本身一年流量过程,因而具有河流本身的季节丰枯特性。用典型年流量来代替多年平均流量,从而实现Tennant法反映河流流量的季节性。改进后的应用结果表明,求得的湟水干流和大通河的河道内生态环境需水流量更好地体现了研究河段流量丰枯的季节性。In this paper, the traditional Tennant method was improved. Based on the original method, a typical year in the average annual flow series of many years was selected, which required that the flow in the typical year is close to the average annual flow of many years. For the typical year chosen from the river flow process, it has the seasonal w etness and dryness characteristics. Use of river flow in a typical year instead of the average annual flow in Tennant method can reflect the seasonal characterist ics of river flow . The results show ed that the eco-environmental water requirement calculated by the improved method bet ter re-flect s the seasonal w etness and dryness characteristics in the main stream of Huangshui River and all reaches of Datong River.

关 键 词：TENNANT法 改进 典型年 季节性河流 分期百分数 生态环境需水量 

分 类 号：TV21[水利工程—水文学及水资源]